If you manage a large network, research your network switch's "Port Security" features.
如果你是管理着一个大型网络，好好去研究一下你的网络交换机的“端口安全”功能。
This strategy has features of little network cost and high security.
该策略具有较小的网络开销，较高的安全性等特点。
This strategy has features of little network cost and high security.
该策略具有较小的网络开销，较高的安全性等特点。
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